| New data on the characterization of humic substances extracted from phosphatised faecal pellets (Tunisia) (2007) | |||||||||||||||
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| Humic substances (HS) were extracted from faecal pellets - ovoid phosphatic grains 50-200 µm in size - collected from commercially mined phosphatic sediments, in the Gafsa Basin. The phosphatic constituents were characterized by C, H, O, N, and S elemental analysis, Rock-Eval VI pyrolysis, Fourier-transformed infrared spectroscopy (FTIR) and solid state 13C CPMAS NMR. | |||||||||||||||
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